A Class of Special Matrices and Quantum Entanglement

Details A Class of Special Matrices and Quantum Entanglement A Class of Special Matrices and Quantum Entanglement

2004-05-14

arxiv.org/abs/quant-ph/0405078v1

Rep. Math. Phys. 53 (2004) 195-210

Physics

Quantum Physics

17 pages

Scientific paper

10.1016/S0034-4877(04)90012-2

We present a kind of construction for a class of special matrices with at most two different eigenvalues, in terms of some interesting multiplicators which are very useful in calculating eigenvalue polynomials of these matrices. This class of matrices defines a special kind of quantum states -- $d$-computable states. The entanglement of formation for a large class of quantum mixed states is explicitly presented.

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